Solar Panel Washing & Cleaning
Did you know that dirty solar panels can lose up to 18% of their efficiency? Dust, pollen, bird droppings, moss, and lichen don’t just look unsightly—they block sunlight from reaching your panels and stop them from producing energy at their full potential. That means higher power bills and wasted investment.
At House Wash NZ, we specialise in safe, professional solar panel cleaning that restores performance, extends panel lifespan, and helps you get the most from your solar system.
Why Solar Panel Cleaning Matters
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Boost Efficiency – Clean panels capture more sunlight, improving energy output and reducing your electricity bill.
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Protect Your Investment – Regular cleaning prevents corrosive growths like moss and lichen from damaging panels and mounting systems.
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Extend Panel Lifespan – Cleaner panels last longer and perform better over time.
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Safety First – Our technicians are trained to clean safely, without causing damage to your panels or roof.
Our Solar Panel Cleaning Process
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We use only the safest and most effective methods to ensure your panels are spotless and undamaged:
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1.Soft Brush & Pure Water System
We clean using soft, purpose-designed brushes combined with pure filtered water, which contains no minerals. This leaves a streak-free, spot-free finish without scratching the panels.
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2.No Harsh Scrubbing or Chemicals
Our process is gentle but thorough, avoiding abrasive cleaning that could damage sensitive surfaces.
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3.Safe Access
In most cases, we can clean your panels from the gutter line—meaning we don’t need to walk on your roof. When roof access is required, our technicians use full safety gear and best-practice procedures.
Why Choose House Wash NZ?
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Experts in solar panel and roof care
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Eco-friendly, biodegradable solutions
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Industry-approved cleaning methods for all panel types
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Fully insured, trained, and safety-compliant team
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100% satisfaction guarantee
Additional Roof Protection
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While we’re cleaning your solar panels, we can also apply Roof-Clear Treatments to remove moss, mould, and lichen that thrive on roofs. Left untreated, these growths not only shorten roof life but can also spread to solar panels, blocking efficiency.
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Option 1: Roof-Clear Treatment – 1-Year Guarantee, fully biodegradable, safe for all roof types.
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Option 2: Roof-Clear Treatment PLUS – 2-Year Guarantee, ideal for roofs with heavy growth or long delays between cleans.
​Book Your Solar Panel Clean Today​
Get your solar panels working at peak performance and start saving more on your power bills today with House Wash NZ.
